Such fibrosis can occur anywhere in the gastrointestinal tract, but is most common in the lower esophagus, leading to the esophageal dysmotility with systemic sclerosis.

• 这种纤维可发生在胃肠道的任何地方，但最常见于食管下端,导致系统性硬化病人食管蠕动障碍。